Summary: I will first collect the analysis questions from previous day's Punnett Square activity. This will be corrected and used as a formative assessment grade. We will review monohybrid crosses and how to determine genotypic and phenotypic ratios. We will also briefly discuss the concept of independent assortment and the process of constructing a dihybrid cross. To explain the concept of independent assortment of genes, students will engage in a dihybrid cross activity. I will have prepared pennies and nickels that are labeled with two genotypes for two different traits of an alien. For example, pennies will represent how many eyes their alien has and nickels will represent what color skin their alien has. Each person will get two pennies and two nickels. They will create a Punnett Square that will predict the results of the offspring of their alien and their partner's alien. Students will have to develop a procedure to test their results to see if they are accurate by modeling after the monohybrid activity from the day before. If time, students will create a concept map in their notebooks that displays the connection between all the terms they have learned so far in this unit.
Homework: Answer the analysis questions from the dihybrid cross activity. Study for quiz next period.
Objectives:
Students will successfully cross two traits in a dihybrid Punnett Square and describe the genotypic and phenotypic results that occur.
Students will describe how a dihybrid Punnet Square displays the concept of independent assortment of alleles.
Students will demonstrate knowledge of the connections of the terms in this genetics unit by creating a concept map.
Homework: Answer the analysis questions from the dihybrid cross activity. Study for quiz next period.
Objectives:
Students will successfully cross two traits in a dihybrid Punnett Square and describe the genotypic and phenotypic results that occur.
Students will describe how a dihybrid Punnet Square displays the concept of independent assortment of alleles.
Students will demonstrate knowledge of the connections of the terms in this genetics unit by creating a concept map.